Katsuragi's beloved grandpa recently died from a stroke. After his grandpa's death, Katsuragi is contacted by the family at the estate where his grandpa worked as a butler. The family asks him to work there as a butler to replace his grandpa. It turns out, his grandpa was the caretaker of the girl, who is the same age as Katsuragi, so he will now be in charge of taking care of her. When he is asked to take a bunch of boxes to her room, he walks in on her masturbating. How will she react?